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Table 2

Sgr B2(M) continuum sources detected at 1.3 mm with ALMA (see Fig. 5 and Sect. 3.2) and fluxes at different frequencies.

ALMA211−275 VLAa ALMA220 ALMA235 ALMA250 ALMA265 SMAb
RA Dec. I ν F ν θ s F ν F ν F ν F ν F ν F ν
ID (h: m: s) (°: ′: ′′) (Jy beam-1) (Jy) (′′) (Jy) (Jy) (Jy) (Jy) (Jy) (Jy) Spectral indexc
AM01 17:47:20.16 −28:23:04.67 1.815 ± 0.025 5.619 ± 0.135 0.58 1.28 4.69 5.00 6.14 6.65 11.26 + 1.95 ± 0.13 0.89
AM02 17:47:20.14 −28:23:04.18 1.437 ± 0.025 5.745 ± 0.149 0.63 0.78 4.74 5.16 6.26 6.82 11.85 + 2.14 ± 0.14 1.17
AM03 17:47:20.15 −28:23:05.44 0.716 ± 0.027 1.792 ± 0.090 0.70 < 0.01 1.33 1.52 2.03 2.29 3.96 + 3.09 ± 0.14 > 2.87
AM04 17:47:20.18 −28:23:06.00 0.469 ± 0.018 1.199 ± 0.046 0.60 0.07 0.90 1.00 1.38 1.52 2.07 + 2.96 ± 0.22 1.59
AM05 17:47:20.12 −28:23:06.28 0.373 ± 0.024 1.196 ± 0.075 0.59 < 0.01 0.94 0.98 1.42 1.44 1.94 + 2.59 ± 0.26 > 2.63
AM06 17:47:20.11 −28:23:02.99 0.310 ± 0.010 0.937 ± 0.051 0.59 < 0.01 0.74 0.76 1.18 1.07 2.90 + 2.80 ± 0.43 > 2.60
AM07 17:47:20.20 −28:23:06.63 0.310 ± 0.012 0.800 ± 0.044 0.53 0.01 0.63 0.65 0.93 0.99 1.57 + 2.67 ± 0.29 2.27
AM08 17:47:20.29 −28:23:03.13 0.252 ± 0.007 0.401 ± 0.021 0.35 0.13 0.41 0.35 0.44 0.41 0.41 + 0.48 ± 0.38 0.63
AM09 17:47:20.23 −28:23:07.19 0.208 ± 0.009 0.683 ± 0.054 0.59 < 0.01 0.55 0.53 0.78 0.87 1.59 + 2.81 ± 0.43 > 2.37
AM10 17:47:20.06 −28:23:06.21 0.172 ± 0.011 1.002 ± 0.071 1.09 < 0.01 0.94 0.85 1.13 1.09 1.53 + 1.13 ± 0.33 > 2.54
AM11 17:47:19.62 −28:23:08.24 0.132 ± 0.007 0.525 ± 0.053 0.59 < 0.01 0.37 0.38 0.82 0.53 0.70 + 3.92 ± 1.19 > 2.20
AM12 17:47:20.14 −28:23:02.22 0.126 ± 0.007 0.544 ± 0.042 0.81 < 0.03 0.44 0.38 0.70 0.65 1.98 + 3.12 ± 0.59 > 1.73
AM13 17:47:19.96 −28:23:05.58 0.109 ± 0.006 0.548 ± 0.047 0.92 < 0.01 0.34 0.40 0.78 0.68 1.24 + 4.37 ± 0.65 > 2.25
AM14 17:47:20.28 −28:23:03.69 0.129 ± 0.006 0.297 ± 0.024 0.63 < 0.01 0.24 0.23 0.36 0.37 < 0.30 + 3.24 ± 0.55 –
AM15 17:47:19.92 −28:23:02.99 0.071 ± 0.005 0.151 ± 0.018 0.55 0.14 0.15 0.13 0.19 0.14 < 0.30 + 0.49 ± 0.78 < 0.39
AM16 17:47:20.39 −28:23:05.30 0.067 ± 0.005 0.475 ± 0.061 1.23 0.28 0.54 0.36 0.50 0.49 < 0.30 + 0.71 ± 0.78 < 0.01
AM17 17:47:19.45 −28:22:59.77 0.054 ± 0.005 0.371 ± 0.052 1.25 0.11 0.44 0.27 0.41 0.37 < 0.30 + 0.86 ± 1.17 < 0.46
AM18 17:47:19.58 −28:23:07.12 0.052 ± 0.005 0.134 ± 0.020 0.72 < 0.01 0.091 0.079 0.24 0.13 < 0.30 + 6.32 ± 2.17 –
AM19 17:47:19.68 −28:23:09.15 0.050 ± 0.005 0.184 ± 0.026 0.90 < 0.02 0.094 0.027 0.38 0.24 < 0.30 + 3.98 ± 2.05 –
AM20 17:47:19.94 −28:23:09.92 0.048 ± 0.005 0.160 ± 0.024 1.00 < 0.01 0.16 0.13 0.20 0.16 0.35 − 0.48 ± 0.76 > 1.56
AM21 17:47:19.55 −28:23:03.13 0.042 ± 0.005 0.064 ± 0.011 0.59 < 0.01 0.052 0.052 0.068 0.084 < 0.30 + 2.67 ± 0.95 –
AM22 17:47:19.44 −28:23:07.68 0.040 ± 0.005 0.073 ± 0.012 0.65 < 0.01 0.063 0.037 0.096 0.096 < 0.30 + 4.57 ± 1.34 –
AM23 17:47:19.38 −28:23:03.13 0.039 ± 0.005 0.140 ± 0.024 1.02 < 0.01 0.13 0.095 0.14 0.20 < 0.30 + 3.45 ± 1.04 –
AM24 17:47:20.11 −28:23:08.87 0.039 ± 0.005 0.036 ± 0.007 0.37 0.06 0.054 0.040 0.038 0.010 < 0.30 − 2.43 ± 0.93 < 0.86
AM25 17:47:19.70 −28:23:07.19 0.033 ± 0.005 0.054 ± 0.011 0.61 < 0.01 0.066 0.033 0.088 0.031 < 0.30 + 2.22 ± 1.13 –
AM26 17:47:20.35 −28:23:07.82 0.033 ± 0.005 0.115 ± 0.022 0.95 < 0.01 0.069 0.11 0.13 0.16 < 0.30 + 5.03 ± 0.91 –
AM27 17:47:19.35 −28:23:08.94 0.028 ± 0.005 0.048 ± 0.011 0.62 < 0.01 0.062 0.067 0.020 0.042 < 0.30 + 0.13 ± 1.27 –

Notes. Each source is numbered with an ID according to their intensity peak, from the brightest to the weakest. The intensity (Iν) and fluxes (Fν) for the different frequencies have been computed over the polygon defined by the 3σ contour level on the ALMA211−275 image, with σ being the rms noise of the map, 8 mJy beam-1. The deconvolved size (θS) is determined from the 50% contour level. See Sect. 3.2 for details.

(a)

VLA data at 40 GHz from Rolffs et al. (2011).

(b)

SMA data at 345 GHz from Qin et al. (2011).

(c)

The first spectral index is computed from all the continuum measurements in the ALMA frequency coverage (from 211 to 275 GHz) listed in Table B.2. The second value is derived from the continuum measurements at 40 GHz (VLA), 242 GHz (ALMA) and 345 GHz (SMA).

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